C4 python implementation

import sys
m = [0, 0, 0, 0]  # колличество точек в k-й четверти
a = [0, 0, 0, 0]
r = [sys.maxsize, sys.maxsize, sys.maxsize, sys.maxsize]
n = int(input())
for i in range(n):
    x, y = map(int, input().split())
    if not (x and y):
        continue
    if y > 0:
        if x > 0:
            k = 1
        else:
            k = 2
    else:
        if x < 0:
            k = 3
        else:
            k = 4
    m[k] += 1
    if min(abs(x), abs(y)) < r[k]:
        a[k] = (x, y)
        r[k] = min(abs(x), abs(y))
k = 1
for i in range(2, 4):
    if (m[i] > m[k]) or (m[i] == m[k]) and (r[i] < r[k]):
        k = i
print("K = {0}".format(k))
print("M = {0}".format(m[k]))
print("A = {0}".format(a[k]))
print("R = {0}".format(r[k]))